A look inside the daily life of Oracle's billionaire founder Larry Ellison, who owns almost an entire island and will do whatever it takes to win

According to Forbes, the tech mogul recently got $5 billion richer over the course of just two days.

Ellison came from a poor background and dropped out of college twice. In what proved to be a true "rags to riches" story, the billionaire cofounded software company Oracle in 1977 and acquired a reputation as Silicon Valley's bad boy in the ensuing decades.

But what does Ellison — whom Forbes estimated is worth $61.5 billion — get up to every day since stepping down as Oracle's CEO in 2014? Make no mistake, the tech mogul isn't retired — he's still the company's chief technology officer and chairman.

This included hiring investigators to search through garbage from the office of his rival, Bill Gates.

"It's absolutely true we set out to expose Microsoft's covert activities… I feel very good about what we did … Maybe our investigation organization may have done things unsavory, but it's not illegal. We got the truth out," Ellison said.

Ellison spends some of his free time writing short stories.

He has no plans to publish his work just yet. "I think I'll wait until I retire and break those out," Ellison has said. "I write plays and short stories, and they would be controversial. I’m controversial enough without adding that to the mix."

Dubbed by the Wall Street Journal as "the nation's most avid trophy-home buyer" in 2011, Ellison enjoys an impressive real estate portfolio. His $70 million house in Woodside, California, is modeled off ancient Japanese palaces.

Ellison's intensity seeps into aspects of his life beyond his work. An avid sailor, the billionaire founded Oracle Team USA, a yacht racing syndicate.

Since 2003, the team has competed in numerous America's Cup match races, taking the prize in 2010 and 2013. In the 2017 race, however, Ellison's champion sailors lost the America's Cup to the New Zealand team.